A new A.I. model, released by a scrappy Chinese upstart, has rocked Silicon Valley and upended several fundamental assumptions about A.I. progress. Artificial Intelligence, Computers and the Internet, Computer Chips, Open-Source Software, OpenAI Labs, DeepSeek Artificial Intelligence Co Ltd, Meta Platforms Inc, NVIDIA Corporation A new A.I. model, released by a scrappy Chinese upstart, has rocked Silicon Valley and upended several fundamental assumptions about A.I. progress. NYT > Business